Bench-vise.



J. R. LONG.

BENCH VISE.

APPLICATION F|LEo1uNE4.19|5.

Patented Mar. 13, 1917.

2 SHEETS-SHEET l.

l INVENTOR.

BW--Q /L M b YM/M WITNESS waff/Mem- A TToR NE YS.

1. R. LONG.

BENCH'VISE.l

APPLICATION FILED JUNE 4, l9l5.

2 SHEETS-SHEET 2.

WITNESS IN VEN TOR. p j h JHLONG. /ld a BY (mkAw/MANM A TTORNE YS.

JOI-IN IR. LONG, OF AKRON, OHIO.

BENCH-VISE.

Application filed .Tune 4, 1915.

To all whom t may concern:

Be it known that I,YJHN R. LONG, a citizen of the United States, residing at Akron, in the county of Summit and State of Ohio, have invented certain new and useful Improvements in Bench-Vises, of which theV J following is a specification.

The invention herein relates to a double swivel automatic bench vise, and is an improvement on the construction shown in my Patent No. 742,096, issued October 20, 1903.

In the accompanying drawings, Figure 1 is a side elevation of the vise and Fig. 2 is a front end elevation thereof. Fig. 3 is a rear end elevation. Fig. 4 is a longitudinal sectional elevation. Fig. 5 is a plan View on line 5 5, Fig. 4. Fig. 6 is an outside View of the clamping cap or disk on the rear end of the vise. Fig. 7 is a perspective of the sleeve nut for the operating screw.

The parts on which I especially desire protection in this application are the new construction of the base B, the yoke members m and m, the key 7c, the nut n and the parts operatively associated and combined therewith.

Thus, the base B as shown herein has an annular vertically walled channel about a central hub it, which has a flat top surface on a plane with the outer wall of the base about said channel, and the two jaw supporting yokes m and m have semi-circular extensions 2 at their bottom rotatably seated in said channel but otherwise fitting rather snugly therein. Each yoke or yoke member is further provided with lateral shoulders seated upon the outer wall of the base about said channel and lapping approximately half way across the top of hub L at the inside, as seen at 3. This latter feature of a bearing on the hub is important because it forms something of a ful-- crum for the said yoke members when said members are drawn toward each other at the top to tighten the same on the jaws as will presently appear.

The movable jaw J has a tubular spindle Specification of Letters Patent.

Patented Mar. 13, 1917.

Serial No. 32,101. v

or extension 4, and the inner or so-called.

fixed or stationary jaw has a tubular eXtension or lbody 5 into which the spindle 4 is projected or telescoped nearly its entire length, and the said fixed or stationary jaw is mounted in openings` or bearings in the two yokes or yoke members m and m and rotatably locked therein as will presently be seen. Y

The operating or working screw s for the jaws is projected lengthwise through bothends of the outer jaw J and provided with a fixed flanged head 6 at its front and constructed to engage a wrench or crank handle thereon, and at its opposite end eX- tends through a sleeve nut n having a screw thread operatively engaged by said screw. rlhe said nut becomes a fixed member and is peculiar to the present organization of vise in that it has a collar 7 about its outer portion adapted to engage against 'the inner otherwise closed end 8 of the Xed jaw J and a square or angular shank 9 next outside said end 8 and a screw-threaded eX- tremity 10 outside said shank. The square shank 9 fits closely in a correspondingly shaped hole through the end 8 of the inner jaw extension, so that it is locked against rotation therein, and the cap c has an opening or .hole of like shape, Fig. 6, and ts comfortablyon said shank. The said shank terminates with the said cap outside, and an octagonal or like shaped nut 12 is engaged over the threaded end 10 of said sleeve nut and bears against the cap c, forcing the same against the outer edge of the yoke member m and at the same time drawing the inner enlargement of the collar 7 tight against the head 8 of the fixed jaw.

The said nut 12 is usually adapted to be rotated by hand so that a tool is not needed for this purpose. This construction not only eliminates the screws 2 in the patent above referred to but it equalizes the pressure of the friction cap or plate against the rear yoke member m, whereas in the old construction the screws 2 could not be depended upon becausethey would work loose on one side and remain tight on the other with the result that the friction plate had a pinching action when the jaws were revolved.

By building the base B with a hub 7L., and annular channel about the same as shown, a greatly improved grip of the parts is obtained over the old construction with less tightening exertion because the pressure between the two yokes m and m is thrown against the sides and top of the hub when the said parts are compressed or frictionally tightened, thus producing a terrilic grip on the base, whereas in the old construction the middle pressure was wasted.

The movable jaw J is adapted to be moved back and forth Jfor work within limits by means of a flat sided key 7c through the body ot the outer jaw and which runs in the keyway or spline 15 in said jaw. By using a keyy of this kind and stopping the key-way short oin the end ol jaw extension l 1 prevent the withdrawal of the movable vise screw from backing out of the threaded end ot the sleeve nut a. 1n the old construction it was necessary to mill the key-way or spline the entire length of the movable jaw and have it open at the end in order to assemble the parts, andl in addition the old key was a very difficult and expensive article to deal'with, whereas in the present construction it requires only half the work and is easily accomplished and the movable jaw is limited in and by said key-way.

The entire vise shown is made of cast steel and the jaws are of ribbed design and provided with jaw plates 1S in the bite thereof which are attached by nollow headed screws 20. The said heads being on the outside of the jaws the plates 18 are not weakened as in the old construction in which the heads are inside and are sunk into the plates flush with the surface, thus greatly weakening the plates. By the present construction l am enabled to use a hollow headed screw which' ail'ords opportunity to tighten the same so that it will not work loose, it being possible to insert the jaw plates and then compress the jaws together by means 0i the main screw s and then insert the plate screws from without and get a tighter i'it than was possible before.

A bushing@ iixed in the outer jaw serves as bearing 'for the operating screw s, and a collar Q3 is fixed on said screw neXt within said bushing and serves to confine the screw in working relations. The pressure of the head 6 of the screw is directly against the jaw itself.

The Aforegoing construction provides for the locking of the vise as to all its swivel movements by or through the yoke or yoke members m and m and the aXial rotation of the two jaws together.

llihat l claim is:

1. 1n bench vises as described, a base having a centrally disposed hubk and an annular channel about said hub, and a pair of jawsupporting members having segmentally curved portions seated in Said channel and upen said base about said channel.

2. A bench vise comprising a base having an annular channel with substantially parallel vertical side walls, in combination; with jaw supporting members seated on said base and provided with segmental portions occupying said channel and openings in their top.

portions, and jaws mounted inv said openings.

A. bench vise as described having a base with an annular channel, in combination with 'two aw supporting members having each a semi-circular bottom portion extending into said channel and provided with shoulders on their inside lappedl upon the middle portion of saidy base, jaws in said members and means therewith to lock said members in said channels. j

i. A bench vise having a base with an annular channel, a pair of jaw supports having substantially semi-circular extensions occupying said channel and provided with shoulders partially overlapping the middle of' said base, jaws conined in said supports and means therewith adapted to force said supports into rictional engagement with.

the walls of said channel.

5. 1n a bench vise, the construction described comprising a pair of supports and; a base in which said supports are rotatably mounted, a pair of awshaving tubular eX- tensions mounted` within said supports, an operating screw and a nut-sleeve therefor provided with an angular shank mounted in a correspondingly shaped hole in the end of the outer of said jaw extensions, a cap with an angular hole mounted on said shank and a nut bearing against said cap to tighten the s211116.

G. A bench vise constructed as described and having an operating screw, a sleeve-nut in which said screw engages having a square shank and a collar at the inner portion of said shank and a screw threaded outer end, a jaw extension in which said shank is engaged, a cap mounted on said shank and a nut constructed to be gripped by the hand and engaged on said 'threaded outer end to tighten said cap.

7. 1n a bench vise, the construction described having an operating screw and a sleeve-nut therefor Provided with an angular shank, an inner jaw having an angular hole in its end to receive said shank anda collar on said nut bearing against the inside of said end, a tightening cap mounted on said shank and a nut on said sleeve-nut beared to enter said key through the same and 10 ing against said cap. a plug removably closing said hole.

8. A bench vise comprising a fixed and a In testimony whereof I affix my signature movable jaw provided each with a tubular in presence of tWo Witnesses. extension sleeved one Within the other, the

inner of said extensions having a key-Way JOHN -R' LONG terminating VWithin the end thereof, a key Witnesses: free in said Way, a hole in the outer of said A. H; ANTHONY,

extensions opposite said key-Way and adapt- H. C. GARDNER.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

